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/protected/extensions/tiny_mce/assets/plugins/images/connector/php/Image_Toolbox.class.php

https://bitbucket.org/graaaf/erso
PHP | 1411 lines | 968 code | 92 blank | 351 comment | 199 complexity | 679d8f31c9afec5a017a0648a85cae2a MD5 | raw file
Possible License(s): GPL-3.0, LGPL-3.0, LGPL-2.1, BSD-3-Clause, BSD-2-Clause 
    

  1. <?php
    2. 

  2. /**
    3. 

  3.  * Image_Toolbox.class.php -- PHP image manipulation class
    4. 

  4.  *
    5. 

  5.  * Copyright (C) 2003 Martin Theimer <pappkamerad@decoded.net>
    6. 

  6.  * 
    7. 

  7.  * This program is free software; you can redistribute it and/or modify
    8. 

  8.  * it under the terms of the GNU General Public License as published by
    9. 

  9.  * the Free Software Foundation; either version 2 of the License, or
    10. 

  10.  * (at your option) any later version.
    11. 

  11.  * This program is distributed in the hope that it will be useful,
    12. 

  12.  * but WITHOUT ANY WARRANTY; without even the implied warranty of
    13. 

  13.  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    14. 

  14.  * GNU General Public License <http://www.opensource.org/gpl-license.html>
    15. 

  15.  * for more details..
    16. 

  16.  *
    17. 

  17.  * The latest version of Image_Toolbox can be obtained from:
    18. 

  18.  * http://sourceforge.net/projects/image-toolbox
    19. 

  19.  * http://www.phpclasses.org/image_toolbox
    20. 

  20.  *
    21. 

  21.  * @author Martin Theimer <pappkamerad@decoded.net>
    22. 

  22.  * @copyright Copyright (C) 2003 Martin Theimer
    23. 

  23.  * @version 1.1.0
    24. 

  24.  * @package Image_Toolbox
    25. 

  25.  * @link http://sourceforge.net/projects/image-toolbox
    26. 

  26.  */
    27. 

  27.  
    28. 

  28. // $Id: Image_Toolbox.class.php,v 1.9 2003/12/05 19:34:01 pappkamerad Exp $
    29. 

  29. 

  30. if (!defined('IMAGE_TOOLBOX_DEFAULT_JPEG_QUALITY')) {
    31. 

  31. 	define('IMAGE_TOOLBOX_DEFAULT_JPEG_QUALITY', 75);
    32. 

  32. }
    33. 

  33. if (!defined('IMAGE_TOOLBOX_DEFAULT_8BIT_COLORS')) {
    34. 

  34. 	define('IMAGE_TOOLBOX_DEFAULT_8BIT_COLORS', 256);
    35. 

  35. }
    36. 

  36. if (!defined('IMAGE_TOOLBOX_BIAS_HORIZONTAL')) {
    37. 

  37. 	define('IMAGE_TOOLBOX_BIAS_HORIZONTAL', 1);
    38. 

  38. }
    39. 

  39. if (!defined('IMAGE_TOOLBOX_BIAS_VERTICAL')) {
    40. 

  40. 	define('IMAGE_TOOLBOX_BIAS_VERTICAL', 0);
    41. 

  41. }
    42. 

  42. if (!defined('IMAGE_TOOLBOX_BLEND_COPY')) {
    43. 

  43. 	define('IMAGE_TOOLBOX_BLEND_COPY', 1);
    44. 

  44. }
    45. 

  45. if (!defined('IMAGE_TOOLBOX_BLEND_MULTIPLY')) {
    46. 

  46. 	define('IMAGE_TOOLBOX_BLEND_MULTIPLY', 2);
    47. 

  47. }
    48. 

  48. if (!defined('IMAGE_TOOLBOX_BLEND_SCREEN')) {
    49. 

  49. 	define('IMAGE_TOOLBOX_BLEND_SCREEN', 3);
    50. 

  50. }
    51. 

  51. if (!defined('IMAGE_TOOLBOX_BLEND_DIFFERENCE')) {
    52. 

  52. 	define('IMAGE_TOOLBOX_BLEND_DIFFERENCE', 4);
    53. 

  53. }
    54. 

  54. if (!defined('IMAGE_TOOLBOX_BLEND_NEGATION')) {
    55. 

  55. 	define('IMAGE_TOOLBOX_BLEND_NEGATION', 5);
    56. 

  56. }
    57. 

  57. if (!defined('IMAGE_TOOLBOX_BLEND_EXCLUTION')) {
    58. 

  58. 	define('IMAGE_TOOLBOX_BLEND_EXCLUSION', 6);
    59. 

  59. }
    60. 

  60. if (!defined('IMAGE_TOOLBOX_BLEND_OVERLAY')) {
    61. 

  61. 	define('IMAGE_TOOLBOX_BLEND_OVERLAY', 7);
    62. 

  62. }
    63. 

  63. 

  64. /**
    65. 

  65.  * PHP image manipulation class
    66. 

  66.  *
    67. 

  67.  * This class provides an easy to use library to the PHP GD-based imagefunctions
    68. 

  68.  *
    69. 

  69.  * @author Martin Theimer <pappkamerad@decoded.net>
    70. 

  70.  * @copyright 2003, Martin Theimer
    71. 

  71.  * @package Image_Toolbox
    72. 

  72.  * @link http://sourceforge.net/projects/image-toolbox
    73. 

  73.  * @version 1.1.0
    74. 

  74.  */
    75. 

  75. class Image_Toolbox {
    76. 

  76. 

  77.     /**
    78. 

  78.      * The prefix for every error message
    79. 

  79.      * 
    80. 

  80.      * @access private
    81. 

  81.      * @var string
    82. 

  82.      */
    83. 

  83. 	var $_error_prefix = 'Image: ';
    84. 

  84. 	
    85. 

  85. 	/**
    86. 

  86.      * Defines imagetypes and how they are supported by the server
    87. 

  87.      * 
    88. 

  88.      * @access private
    89. 

  89.      * @var array
    90. 

  90.      */
    91. 

  91. 	var $_types = array (
    92. 

  92. 		1 => array (
    93. 

  93. 			'ext' => 'gif',
    94. 

  94. 			'mime' => 'image/gif',
    95. 

  95. 			'supported' => 0
    96. 

  96. 		),
    97. 

  97. 		2 => array (
    98. 

  98. 			'ext' => 'jpg',
    99. 

  99. 			'mime' => 'image/jpeg',
    100. 

  100. 			'supported' => 0
    101. 

  101. 		),
    102. 

  102. 		3 => array (
    103. 

  103. 			'ext' => 'png',
    104. 

  104. 			'mime' => 'image/png',
    105. 

  105. 			'supported' => 0
    106. 

  106. 		)
    107. 

  107. 	);
    108. 

  108. 	
    109. 

  109. 	/**
    110. 

  110.      * Which PHP image resize function to be used
    111. 

  111.      * imagecopyresampled only supported with GD >= 2.0
    112. 

  112.      * 
    113. 

  113.      * @access private
    114. 

  114.      * @var string
    115. 

  115.      */
    116. 

  116. 	var $_resize_function = 'imagecopyresampled';
    117. 

  117. 

  118. 	/**
    119. 

  119.      * Stores all image resource data
    120. 

  120.      * 
    121. 

  121.      * @access private
    122. 

  122.      * @var array
    123. 

  123.      */
    124. 

  124. 	var $_img = array (
    125. 

  125. 		'main' => array (
    126. 

  126. 			'resource' => 0,
    127. 

  127. 			'width' => 0,
    128. 

  128. 			'height' => 0,
    129. 

  129. 			'bias' => 0,
    130. 

  130. 			'aspectratio' => 0,
    131. 

  131. 			'type' => 0,
    132. 

  132. 			'output_type' => 0,
    133. 

  133. 			'indexedcolors' => 0,
    134. 

  134. 			'color' => -1
    135. 

  135. 		)
    136. 

  136. 	);
    137. 

  137. 	
    138. 

  138. 	/**
    139. 

  139.      * Which PHP image create function to be used
    140. 

  140.      * imagecreatetruecolor only supported with GD >= 2.0
    141. 

  141.      * 
    142. 

  142.      * @access private
    143. 

  143.      * @var string
    144. 

  144.      */
    145. 

  145. 	var $_imagecreatefunction = '';
    146. 

  146. 	
    147. 

  147.     /**
    148. 

  148.      * The class constructor.
    149. 

  149.      *
    150. 

  150.      * Determines the image features of the server and sets the according values.<br>
    151. 

  151.      * Additionally you can specify a image to be created/loaded. like {@link addImage() addImage}.
    152. 

  152.      * 
    153. 

  153.      * If no parameter is given, no image resource will be generated<br>
    154. 

  154.      * Or:<br>
    155. 

  155.      * <i>string</i> <b>$file</b> imagefile to load<br>
    156. 

  156.      * Or:<br>
    157. 

  157.      * <i>integer</i> <b>$width</b> imagewidth of new image to be created<br>
    158. 

  158.      * <i>integer</i> <b>$height</b> imageheight of new image to be created<br>
    159. 

  159.      * <i>string</i> <b>$fillcolor</b> optional fill the new image with this color (hexformat, e.g. '#FF0000')<br>
    160. 

  160.      */
    161. 

  161. 	function Image_Toolbox() {
    162. 

  162. 		$args = func_get_args();
    163. 

  163. 		$argc = func_num_args();
    164. 

  164. 		
    165. 

  165. 		//get GD information. see what types we can handle
    166. 

  166. 		$gd_info = function_exists('gd_info') ? gd_info() : $this->_gd_info();
    167. 

  167. 		preg_match("/\A[\D]*([\d+\.]*)[\D]*\Z/", $gd_info['GD Version'], $matches);
    168. 

  168. 		list($this->_gd_version_string, $this->_gd_version_number) = $matches;
    169. 

  169. 		$this->_gd_version = substr($this->_gd_version_number, 0, strpos($this->_gd_version_number, '.'));
    170. 

  170. 		if ($this->_gd_version >= 2) {
    171. 

  171. 			$this->_imagecreatefunction = 'imagecreatetruecolor';
    172. 

  172. 			$this->_resize_function = 'imagecopyresampled';
    173. 

  173. 		} else {
    174. 

  174. 			$this->_imagecreatefunction = 'imagecreate';
    175. 

  175. 			$this->_resize_function = 'imagecopyresized';
    176. 

  176. 		}
    177. 

  177. 						
    178. 

  178. 		$this->_gd_ttf = $gd_info['FreeType Support'];
    179. 

  179. 		$this->_gd_ps = $gd_info['T1Lib Support'];
    180. 

  180. 		if ($gd_info['GIF Read Support']) {
    181. 

  181. 			$this->_types[1]['supported'] = 1;
    182. 

  182. 			if ($gd_info['GIF Create Support']) {
    183. 

  183. 				$this->_types[1]['supported'] = 2;
    184. 

  184. 			}
    185. 

  185. 		}
    186. 

  186. 		
    187. 

  187. 		if ((isset($gd_info['JPG Support']) && $gd_info['JPG Support']) || (isset($gd_info['JPEG Support']) && $gd_info['JPEG Support'])) {
    188. 

  188. 			$this->_types[2]['supported'] = 2;
    189. 

  189. 		}
    190. 

  190. 		if ($gd_info['PNG Support']) {
    191. 

  191. 			$this->_types[3]['supported'] = 2;
    192. 

  192. 		}
    193. 

  193. 		
    194. 

  194. 		//load or create main image
    195. 

  195. 		if ($argc == 0) {
    196. 

  196. 			return true;
    197. 

  197. 		} else {
    198. 

  198. 			if ($this->_addImage($argc, $args)) {
    199. 

  199. 				foreach ($this->_img['operator'] as $key => $value) {
    200. 

  200. 					$this->_img['main'][$key] = $value;
    201. 

  201. 				}
    202. 

  202. 				$this->_img['main']['output_type'] = $this->_img['main']['type'];
    203. 

  203. 				unset($this->_img['operator']);
    204. 

  204. 				return true;
    205. 

  205. 			} else {
    206. 

  206. 				trigger_error($this->_error_prefix . 'No appropriate constructor found.', E_USER_ERROR);
    207. 

  207. 				return null;
    208. 

  208. 			}
    209. 

  209. 		}
    210. 

  210. 	}
    211. 

  211. 

  212. 	/**
    213. 

  213.      * Returns an assocative array with information about the image features of this server
    214. 

  214.      *
    215. 

  215.      * Array values:
    216. 

  216.      * <ul>
    217. 

  217.      * <li>'gd_version' -> what GD version is installed on this server (e.g. 2.0)</li>
    218. 

  218.      * <li>'gif' -> 0 = not supported, 1 = reading is supported, 2 = creating is supported</li>
    219. 

  219.      * <li>'jpg' -> 0 = not supported, 1 = reading is supported, 2 = creating is supported</li>
    220. 

  220.      * <li>'png' -> 0 = not supported, 1 = reading is supported, 2 = creating is supported</li>
    221. 

  221.      * <li>'ttf' -> TTF text creation. true = supported, false = not supported
    222. 

  222.      * </ul>
    223. 

  223.      *
    224. 

  224.      * @return array
    225. 

  225.      */ 
    226. 

  226. 	function getServerFeatures() {
    227. 

  227. 		$features = array();
    228. 

  228. 		$features['gd_version'] = $this->_gd_version_number;
    229. 

  229. 		$features['gif'] = $this->_types[1]['supported'];
    230. 

  230. 		$features['jpg'] = $this->_types[2]['supported'];
    231. 

  231. 		$features['png'] = $this->_types[3]['supported'];
    232. 

  232. 		$features['ttf'] = $this->_gd_ttf;
    233. 

  233. 		return $features;
    234. 

  234. 	}
    235. 

  235. 

  236. 	/**
    237. 

  237.      * Flush all image resources and init a new one
    238. 

  238.      *
    239. 

  239.      * Parameter:<br>
    240. 

  240.      * <i>string</i> <b>$file</b> imagefile to load<br>
    241. 

  241.      * Or:<br>
    242. 

  242.      * <i>integer</i> <b>$width</b> imagewidth of new image to be created<br>
    243. 

  243.      * <i>integer</i> <b>$height</b> imageheight of new image to be created<br>
    244. 

  244.      * <i>string</i> <b>$fillcolor</b> optional fill the new image with this color (hexformat, e.g. '#FF0000')<br>
    245. 

  245.      */ 
    246. 

  246. 	function newImage() {
    247. 

  247. 		$args = func_get_args();
    248. 

  248. 		$argc = func_num_args();
    249. 

  249. 		
    250. 

  250. 		if ($this->_addImage($argc, $args)) {
    251. 

  251. 			foreach ($this->_img['operator'] as $key => $value) {
    252. 

  252. 				$this->_img['main'][$key] = $value;
    253. 

  253. 			}
    254. 

  254. 			$this->_img['main']['output_type'] = $this->_img['main']['type'];
    255. 

  255. 			unset($this->_img['operator']);
    256. 

  256. 			return true;
    257. 

  257. 		} else {
    258. 

  258. 			trigger_error($this->_error_prefix . 'No appropriate constructor found.', E_USER_ERROR);
    259. 

  259. 			return null;
    260. 

  260. 		}
    261. 

  261. 	}
    262. 

  262. 

  263. 	/**
    264. 

  264.      * Reimplements the original PHP {@link gd_info()} function for older PHP versions
    265. 

  265.      * 
    266. 

  266.      * @access private
    267. 

  267.      * @return array associative array with info about the GD library of the server
    268. 

  268.      */ 
    269. 

  269. 	function _gd_info() {
    270. 

  270. 		$array = array(
    271. 

  271.         	"GD Version" => "",
    272. 

  272. 			"FreeType Support" => false,
    273. 

  273. 			"FreeType Linkage" => "",
    274. 

  274. 			"T1Lib Support" => false,
    275. 

  275. 			"GIF Read Support" => false,
    276. 

  276. 			"GIF Create Support" => false,
    277. 

  277. 			"JPG Support" => false,
    278. 

  278. 			"PNG Support" => false,
    279. 

  279. 			"WBMP Support" => false,
    280. 

  280. 			"XBM Support" => false
    281. 

  281. 		);
    282. 

  282.         
    283. 

  283. 		$gif_support = 0;
    284. 

  284. 		ob_start();
    285. 

  285. 		eval("phpinfo();");
    286. 

  286. 		$info = ob_get_contents();
    287. 

  287. 		ob_end_clean();
    288. 

  288.       
    289. 

  289. 		foreach(explode("\n", $info) as $line) {
    290. 

  290. 			if(strpos($line, "GD Version") !== false)
    291. 

  291. 				$array["GD Version"] = trim(str_replace("GD Version", "", strip_tags($line)));
    292. 

  292. 			if(strpos($line, "FreeType Support") !== false)
    293. 

  293. 				$array["FreeType Support"] = trim(str_replace("FreeType Support", "", strip_tags($line)));
    294. 

  294. 			if(strpos($line, "FreeType Linkage") !== false)
    295. 

  295. 				$array["FreeType Linkage"] = trim(str_replace("FreeType Linkage", "", strip_tags($line)));
    296. 

  296. 			if(strpos($line, "T1Lib Support") !== false)
    297. 

  297. 				$array["T1Lib Support"] = trim(str_replace("T1Lib Support", "", strip_tags($line)));
    298. 

  298. 			if(strpos($line, "GIF Read Support") !== false)
    299. 

  299. 				$array["GIF Read Support"] = trim(str_replace("GIF Read Support", "", strip_tags($line)));
    300. 

  300. 			if(strpos($line, "GIF Create Support") !== false)
    301. 

  301. 				$array["GIF Create Support"] = trim(str_replace("GIF Create Support", "", strip_tags($line)));
    302. 

  302. 			if(strpos($line, "GIF Support") !== false)
    303. 

  303. 				$gif_support = trim(str_replace("GIF Support", "", strip_tags($line)));
    304. 

  304. 			if(strpos($line, "JPG Support") !== false)
    305. 

  305. 				$array["JPG Support"] = trim(str_replace("JPG Support", "", strip_tags($line)));
    306. 

  306. 			if(strpos($line, "PNG Support") !== false)
    307. 

  307. 				$array["PNG Support"] = trim(str_replace("PNG Support", "", strip_tags($line)));
    308. 

  308. 			if(strpos($line, "WBMP Support") !== false)
    309. 

  309. 				$array["WBMP Support"] = trim(str_replace("WBMP Support", "", strip_tags($line)));
    310. 

  310. 			if(strpos($line, "XBM Support") !== false)
    311. 

  311. 				$array["XBM Support"] = trim(str_replace("XBM Support", "", strip_tags($line)));
    312. 

  312. 		}
    313. 

  313.         
    314. 

  314. 		if($gif_support === "enabled") {
    315. 

  315. 			$array["GIF Read Support"] = true;
    316. 

  316. 			$array["GIF Create Support"] = true;
    317. 

  317. 		}
    318. 

  318. 

  319. 		if($array["FreeType Support"] === "enabled") {
    320. 

  320. 			$array["FreeType Support"] = true;
    321. 

  321. 		}
    322. 

  322.  
    323. 

  323.         if($array["T1Lib Support"] === "enabled") {
    324. 

  324.             $array["T1Lib Support"] = true;
    325. 

  325.         }
    326. 

  326.        
    327. 

  327. 		if($array["GIF Read Support"] === "enabled") {
    328. 

  328. 			$array["GIF Read Support"] = true;
    329. 

  329. 		}
    330. 

  330.  
    331. 

  331. 		if($array["GIF Create Support"] === "enabled") {
    332. 

  332. 			$array["GIF Create Support"] = true;
    333. 

  333. 		}
    334. 

  334. 

  335. 		if($array["JPG Support"] === "enabled") {
    336. 

  336. 			$array["JPG Support"] = true;
    337. 

  337. 		}
    338. 

  338.             
    339. 

  339. 		if($array["PNG Support"] === "enabled") {
    340. 

  340. 			$array["PNG Support"] = true;
    341. 

  341. 		}
    342. 

  342.             
    343. 

  343. 		if($array["WBMP Support"] === "enabled") {
    344. 

  344. 			$array["WBMP Support"] = true;
    345. 

  345. 		}
    346. 

  346.             
    347. 

  347. 		if($array["XBM Support"] === "enabled") {
    348. 

  348. 			$array["XBM Support"] = true;
    349. 

  349. 		}
    350. 

  350. 

  351. 		return $array;
    352. 

  352.     }
    353. 

  353. 

  354. 	/**
    355. 

  355.      * Convert a color defined in hexvalues to the PHP color format
    356. 

  356.      * 
    357. 

  357.      * @access private
    358. 

  358.      * @param string $hex color value in hexformat (e.g. '#FF0000')
    359. 

  359.      * @return integer color value in PHP format
    360. 

  360.      */ 
    361. 

  361. 	function _hexToPHPColor($hex) {
    362. 

  362. 		$length = strlen($hex);
    363. 

  363. 		$dr = hexdec(substr($hex, $length - 6, 2));
    364. 

  364. 		$dg = hexdec(substr($hex, $length - 4, 2));
    365. 

  365. 		$db = hexdec(substr($hex, $length - 2, 2));
    366. 

  366. 		$color = ($dr << 16) + ($dg << 8) + $db;
    367. 

  367. 		return $color;
    368. 

  368. 	}
    369. 

  369. 	
    370. 

  370. 	/**
    371. 

  371.      * Convert a color defined in hexvalues to corresponding dezimal values
    372. 

  372.      * 
    373. 

  373.      * @access private
    374. 

  374.      * @param string $hex color value in hexformat (e.g. '#FF0000')
    375. 

  375.      * @return array associative array with color values in dezimal format (fields: 'red', 'green', 'blue')
    376. 

  376.      */ 
    377. 

  377. 	function _hexToDecColor($hex) {
    378. 

  378. 		$length = strlen($hex);
    379. 

  379. 		$color['red'] = hexdec(substr($hex, $length - 6, 2));
    380. 

  380. 		$color['green'] = hexdec(substr($hex, $length - 4, 2));
    381. 

  381. 		$color['blue'] = hexdec(substr($hex, $length - 2, 2));
    382. 

  382. 		return $color;
    383. 

  383. 	}
    384. 

  384. 

  385. 	/**
    386. 

  386.      * Generate a new image resource based on the given parameters
    387. 

  387.      *
    388. 

  388.      * Parameter:
    389. 

  389.      * <i>string</i> <b>$file</b> imagefile to load<br>
    390. 

  390.      * Or:<br>
    391. 

  391.      * <i>integer</i> <b>$width</b> imagewidth of new image to be created<br>
    392. 

  392.      * <i>integer</i> <b>$height</b> imageheight of new image to be created<br>
    393. 

  393.      * <i>string</i> <b>$fillcolor</b> optional fill the new image with this color (hexformat, e.g. '#FF0000')<br>
    394. 

  394.      *
    395. 

  395.      * @access private
    396. 

  396.      */
    397. 

  397. 	function _addImage($argc, $args) {
    398. 

  398. 		if (($argc == 2 || $argc == 3) && is_int($args[0]) && is_int($args[1]) && (is_string($args[2]) || !isset($args[2]))) {
    399. 

  399. 			//neues leeres bild mit width und height (fillcolor optional)
    400. 

  400. 			$this->_img['operator']['width'] = $args[0];
    401. 

  401.             $this->_img['operator']['height'] = $args[1];
    402. 

  402.             ($this->_img['operator']['width'] >= $this->_img['operator']['height']) ? ($this->_img['operator']['bias'] = IMAGE_TOOLBOX_BIAS_HORIZONTAL) : ($this->_img['operator']['bias'] = IMAGE_TOOLBOX_BIAS_VERTICAL);
    403. 

  403.             $this->_img['operator']['aspectratio'] = $this->_img['operator']['width'] / $this->_img['operator']['height'];
    404. 

  404.             $this->_img['operator']['indexedcolors'] = 0;
    405. 

  405.             $functionname = $this->_imagecreatefunction;
    406. 

  406.             $this->_img['operator']['resource'] = $functionname($this->_img['operator']['width'], $this->_img['operator']['height']);
    407. 

  407.             // set default type jpg.
    408. 

  408.             $this->_img['operator']['type'] = 2;
    409. 

  409.             if (isset($args[2]) && is_string($args[2])) {
    410. 

  410.             	//neues bild mit farbe f�llen
    411. 

  411.             	$fillcolor = $this->_hexToPHPColor($args[2]);
    412. 

  412.             	imagefill($this->_img['operator']['resource'], 0, 0, $fillcolor);
    413. 

  413.             	$this->_img['operator']['color'] = $fillcolor;
    414. 

  414.             } else {
    415. 

  415.             	$this->_img['operator']['color'] = 0;
    416. 

  416. 			}
    417. 

  417. 		} elseif ($argc == 1 && is_string($args[0])) {
    418. 

  418. 			//bild aus datei laden. width und height original gr�sse
    419. 

  419. 			$this->_img['operator'] = $this->_loadFile($args[0]);
    420. 

  420. 			$this->_img['operator']['indexedcolors'] = imagecolorstotal($this->_img['operator']['resource']);
    421. 

  421. 			$this->_img['operator']['color'] = -1;
    422. 

  422. 		} else {
    423. 

  423. 			return false;
    424. 

  424. 		}
    425. 

  425. 		return true;
    426. 

  426. 	}
    427. 

  427. 

  428. 	/**
    429. 

  429.      * Loads a image file
    430. 

  430.      *
    431. 

  431.      * @access private
    432. 

  432.      * @param string $filename imagefile to load
    433. 

  433.      * @return array associative array with the loaded filedata
    434. 

  434.      */
    435. 

  435. 	function _loadFile($filename) {
    436. 

  436. 		if (file_exists($filename)) {
    437. 

  437. 			$info = getimagesize($filename);
    438. 

  438. 			
    439. 

  439. 			if (!$info)
    440. 

  440. 			{
    441. 

  441. 				trigger_error($this->_error_prefix . 'Not an image ('.$filename.').', E_USER_ERROR);
    442. 

  442. 				return null;
    443. 

  443. 			}
    444. 

  444. 			
    445. 

  445. 			$filedata['width'] = $info[0];
    446. 

  446. 			$filedata['height'] = $info[1];
    447. 

  447. 			($filedata['width'] >= $filedata['height']) ? ($filedata['bias'] = IMAGE_TOOLBOX_BIAS_HORIZONTAL) : ($filedata['bias'] = IMAGE_TOOLBOX_BIAS_VERTICAL);
    448. 

  448.            	$filedata['aspectratio'] = $filedata['width'] / $filedata['height'];
    449. 

  449. 			$filedata['type'] = $info[2];
    450. 

  450. 

  451. 			if ($this->_types[$filedata['type']]['supported'] < 1) {
    452. 

  452. 				trigger_error($this->_error_prefix . 'Imagetype ('.$this->_types[$filedata['type']]['ext'].') not supported for reading.', E_USER_ERROR);
    453. 

  453. 				return null;
    454. 

  454. 			}
    455. 

  455. 			switch ($filedata['type']) {
    456. 

  456. 				case 1:
    457. 

  457. 					$dummy = imagecreatefromgif($filename);
    458. 

  458. 					$functionname = $this->_imagecreatefunction;
    459. 

  459. 					$filedata['resource'] = $functionname($filedata['width'], $filedata['height']);
    460. 

  460. 					imagecopy($filedata['resource'], $dummy, 0, 0, 0, 0, $filedata['width'], $filedata['height']);
    461. 

  461. 					imagedestroy($dummy);
    462. 

  462. 					break;
    463. 

  463. 					
    464. 

  464. 				case 2:
    465. 

  465. 					$filedata['resource'] = imagecreatefromjpeg($filename);
    466. 

  466. 					break;
    467. 

  467. 					
    468. 

  468. 				case 3:
    469. 

  469. 					$dummy = imagecreatefrompng($filename);
    470. 

  470. 					if (imagecolorstotal($dummy) != 0) {
    471. 

  471. 						$functionname = $this->_imagecreatefunction;
    472. 

  472. 						$filedata['resource'] = $functionname($filedata['width'], $filedata['height']);
    473. 

  473. 						imagecopy($filedata['resource'], $dummy, 0, 0, 0, 0, $filedata['width'], $filedata['height']);
    474. 

  474. 					} else {
    475. 

  475. 						$filedata['resource'] = $dummy;
    476. 

  476. 					}
    477. 

  477. 					unset($dummy);
    478. 

  478. 					break;
    479. 

  479. 					
    480. 

  480. 				default:
    481. 

  481. 					trigger_error($this->_error_prefix . 'Imagetype not supported.', E_USER_ERROR);
    482. 

  482. 					return null;
    483. 

  483. 			}
    484. 

  484. 			return $filedata;
    485. 

  485. 		} else {
    486. 

  486. 			trigger_error($this->_error_prefix . 'Imagefile (' . $filename . ') does not exist.', E_USER_ERROR);
    487. 

  487. 			return null;
    488. 

  488. 		}
    489. 

  489. 	}
    490. 

  490. 	
    491. 

  491. 	/**
    492. 

  492.      * Output a image to the browser
    493. 

  493.      *
    494. 

  494.      * $output_type can be one of the following:<br>
    495. 

  495.      * <ul>
    496. 

  496.      * <li>'gif' -> gif image (if supported) (8-bit indexed colors)</li>
    497. 

  497.      * <li>'png' -> png image (if supported) (truecolor)</li>
    498. 

  498.      * <li>'png8' -> png image (if supported) (8-bit indexed colors)</li>
    499. 

  499.      * <li>'jpg' -> jpeg image (if supported) (truecolor)</li>
    500. 

  500.      * </ul>
    501. 

  501.      * (default: same as original)
    502. 

  502.      *
    503. 

  503.      * $dither:<br>
    504. 

  504.      * If this is true than dither is used on the conversion from truecolor to 8-bit indexed imageformats (png8, gif)<br>
    505. 

  505.      * (default = false)
    506. 

  506.      *
    507. 

  507.      * @param string|integer $output_type type of outputted image
    508. 

  508.      * @param integer $output_quality jpeg quality of outputted image (default: IMAGE_TOOLBOX_DEFAULT_JPEG_QUALITY)
    509. 

  509.      * @param bool $dither use dither
    510. 

  510.      * @return bool true on success, otherwise false
    511. 

  511.      */
    512. 

  512. 	function output($output_type = false, $output_quality = false, $dither = false) {
    513. 

  513. 		if ($output_type === false) {
    514. 

  514. 			$output_type = $this->_img['main']['output_type'];
    515. 

  515. 		}
    516. 

  516. 		switch ($output_type) {
    517. 

  517. 			case 1:
    518. 

  518. 			case 'gif':
    519. 

  519. 			case 'GIF':
    520. 

  520. 				if ($this->_types[1]['supported'] < 2) {
    521. 

  521. 					trigger_error($this->_error_prefix . 'Imagetype ('.$this->_types[$output_type]['ext'].') not supported for creating/writing.', E_USER_ERROR);
    522. 

  522. 					return null;
    523. 

  523. 				}
    524. 

  524. 				header ('Content-type: ' . $this->_types[$output_type]['mime']);
    525. 

  525. 				if ($this->_gd_version >= 2) {
    526. 

  526. 					if ($this->_img['main']['indexedcolors'] == 0) {
    527. 

  527. 						$dummy = imagecreatetruecolor($this->_img['main']['width'], $this->_img['main']['height']);
    528. 

  528. 						imagecopy($dummy, $this->_img['main']['resource'], 0, 0, 0, 0, $this->_img['main']['width'], $this->_img['main']['height']);
    529. 

  529. 						if ($output_quality === false) {
    530. 

  530. 							$output_quality = IMAGE_TOOLBOX_DEFAULT_8BIT_COLORS;
    531. 

  531. 						}
    532. 

  532. 						imagetruecolortopalette($dummy, $dither, $output_quality);
    533. 

  533. 					}
    534. 

  534. 					imagegif($dummy);
    535. 

  535. 					imagedestroy($dummy);
    536. 

  536. 				}
    537. 

  537. 				else {
    538. 

  538. 					imagegif($this->_img['main']['resource']);
    539. 

  539. 				}
    540. 

  540. 				break;
    541. 

  541. 			
    542. 

  542. 			case 2:
    543. 

  543. 			case '2':
    544. 

  544. 			case 'jpg':
    545. 

  545. 			case 'jpeg':
    546. 

  546. 			case 'JPG':
    547. 

  547. 			case 'JPEG':
    548. 

  548. 				if ($this->_types[2]['supported'] < 2) {
    549. 

  549. 					trigger_error($this->_error_prefix . 'Imagetype ('.$this->_types[$output_type]['ext'].') not supported for creating/writing.', E_USER_ERROR);
    550. 

  550. 					return null;
    551. 

  551. 				}
    552. 

  552. 				header ('Content-type: ' . $this->_types[$output_type]['mime']);
    553. 

  553. 				if ($output_quality === false) {
    554. 

  554. 					$output_quality = IMAGE_TOOLBOX_DEFAULT_JPEG_QUALITY;
    555. 

  555. 				}
    556. 

  556. 				imagejpeg($this->_img['main']['resource'], '', $output_quality);
    557. 

  557. 				break;
    558. 

  558. 				
    559. 

  559. 			case 3:
    560. 

  560. 			case '3':
    561. 

  561. 			case 'png':
    562. 

  562. 			case 'PNG':
    563. 

  563. 			case 'png24':
    564. 

  564. 			case 'PNG24':
    565. 

  565. 				if ($this->_types[3]['supported'] < 2) {
    566. 

  566. 					trigger_error($this->_error_prefix . 'Imagetype ('.$this->_types[$output_type]['ext'].') not supported for creating/writing.', E_USER_ERROR);
    567. 

  567. 					return null;
    568. 

  568. 				}
    569. 

  569. 				header ('Content-type: ' . $this->_types[$output_type]['mime']);
    570. 

  570. 				imagepng($this->_img['main']['resource']);
    571. 

  571. 				break;
    572. 

  572. 				
    573. 

  573. 			case 4:
    574. 

  574. 			case '4':
    575. 

  575. 			case 'png8':
    576. 

  576. 			case 'PNG8':
    577. 

  577. 				if ($this->_types[3]['supported'] < 2) {
    578. 

  578. 					trigger_error($this->_error_prefix . 'Imagetype ('.$this->_types[$output_type]['ext'].') not supported for creating/writing.', E_USER_ERROR);
    579. 

  579. 					return null;
    580. 

  580. 				}
    581. 

  581. 				header ('Content-type: ' . $this->_types[$output_type]['mime']);
    582. 

  582. 				if ($this->_gd_version >= 2) {
    583. 

  583. 					if ($this->_img['main']['indexedcolors'] == 0) {
    584. 

  584. 						$dummy = imagecreatetruecolor($this->_img['main']['width'], $this->_img['main']['height']);
    585. 

  585. 						imagecopy($dummy, $this->_img['main']['resource'], 0, 0, 0, 0, $this->_img['main']['width'], $this->_img['main']['height']);
    586. 

  586. 						if ($output_quality === false) {
    587. 

  587. 							$output_quality = IMAGE_TOOLBOX_DEFAULT_8BIT_COLORS;
    588. 

  588. 						}
    589. 

  589. 						imagetruecolortopalette($dummy, $dither, $output_quality);
    590. 

  590. 					}
    591. 

  591. 					imagepng($dummy);
    592. 

  592. 					imagedestroy($dummy);
    593. 

  593. 				}
    594. 

  594. 				else {
    595. 

  595. 					imagepng($this->_img['main']['resource']);
    596. 

  596. 				}
    597. 

  597. 				break;
    598. 

  598. 				
    599. 

  599. 			default:
    600. 

  600. 				trigger_error($this->_error_prefix . 'Output-Imagetype not supported.', E_USER_ERROR);
    601. 

  601. 				return null;
    602. 

  602. 		}
    603. 

  603. 		return true;
    604. 

  604. 	}
    605. 

  605. 	
    606. 

  606. 	/**
    607. 

  607.      * Save a image to disk
    608. 

  608.      *
    609. 

  609.      * $output_type can be one of the following:<br>
    610. 

  610.      * <ul>
    611. 

  611.      * <li>'gif' -> gif image (if supported) (8-bit indexed colors)</li>
    612. 

  612.      * <li>'png' -> png image (if supported) (truecolor)</li>
    613. 

  613.      * <li>'png8' -> png image (if supported) (8-bit indexed colors)</li>
    614. 

  614.      * <li>'jpg' -> jpeg image (if supported) (truecolor)</li>
    615. 

  615.      * </ul>
    616. 

  616.      * (default: same as original)
    617. 

  617.      *
    618. 

  618.      * $dither:<br>
    619. 

  619.      * If this is true than dither is used on the conversion from truecolor to 8-bit indexed imageformats (png8, gif)<br>
    620. 

  620.      * (default = false)
    621. 

  621.      *
    622. 

  622.      * @param string $filename filename of saved image
    623. 

  623.      * @param string|integer $output_type type of saved image
    624. 

  624.      * @param integer $output_quality jpeg quality of saved image (default: IMAGE_TOOLBOX_DEFAULT_JPEG_QUALITY)
    625. 

  625.      * @param bool $dither use dither
    626. 

  626.      * @return bool true on success, otherwise false
    627. 

  627.      */
    628. 

  628. 	function save($filename, $output_type = false, $output_quality = false, $dither = false) {
    629. 

  629. 		if ($output_type === false) {
    630. 

  630. 			$output_type = $this->_img['main']['output_type'];
    631. 

  631. 		}
    632. 

  632. 		switch ($output_type) {
    633. 

  633. 			case 1:
    634. 

  634. 			case 'gif':
    635. 

  635. 			case 'GIF':
    636. 

  636. 				if ($this->_types[1]['supported'] < 2) {
    637. 

  637. 					trigger_error($this->_error_prefix . 'Imagetype ('.$this->_types[$output_type]['ext'].') not supported for creating/writing.', E_USER_ERROR);
    638. 

  638. 					return null;
    639. 

  639. 				}
    640. 

  640. 				if ($this->_gd_version >= 2) {
    641. 

  641. 					if ($this->_img['main']['indexedcolors'] == 0) {
    642. 

  642. 						$dummy = imagecreatetruecolor($this->_img['main']['width'], $this->_img['main']['height']);
    643. 

  643. 						imagecopy($dummy, $this->_img['main']['resource'], 0, 0, 0, 0, $this->_img['main']['width'], $this->_img['main']['height']);
    644. 

  644. 						if ($output_quality === false) {
    645. 

  645. 							$output_quality = IMAGE_TOOLBOX_DEFAULT_8BIT_COLORS;
    646. 

  646. 						}
    647. 

  647. 						imagetruecolortopalette($dummy, $dither, $output_quality);
    648. 

  648. 					}
    649. 

  649. 					imagegif($dummy, $filename);
    650. 

  650. 					imagedestroy($dummy);
    651. 

  651. 				}
    652. 

  652. 				else {
    653. 

  653. 					imagegif($this->_img['main']['resource']);
    654. 

  654. 				}
    655. 

  655. 				break;
    656. 

  656. 			
    657. 

  657. 			case 2:
    658. 

  658. 			case '2':
    659. 

  659. 			case 'jpg':
    660. 

  660. 			case 'jpeg':
    661. 

  661. 			case 'JPG':
    662. 

  662. 			case 'JPEG':
    663. 

  663. 				if ($this->_types[2]['supported'] < 2) {
    664. 

  664. 					trigger_error($this->_error_prefix . 'Imagetype ('.$this->_types[$output_type]['ext'].') not supported for creating/writing.', E_USER_ERROR);
    665. 

  665. 					return null;
    666. 

  666. 				}
    667. 

  667. 				if ($output_quality === false) {
    668. 

  668. 					$output_quality = IMAGE_TOOLBOX_DEFAULT_JPEG_QUALITY;
    669. 

  669. 				}
    670. 

  670. 				imagejpeg($this->_img['main']['resource'], $filename, $output_quality);
    671. 

  671. 				break;
    672. 

  672. 				
    673. 

  673. 			case 3:
    674. 

  674. 			case '3':
    675. 

  675. 			case 'png':
    676. 

  676. 			case 'PNG':
    677. 

  677. 			case 'png24':
    678. 

  678. 			case 'PNG24':
    679. 

  679. 				if ($this->_types[3]['supported'] < 2) {
    680. 

  680. 					trigger_error($this->_error_prefix . 'Imagetype ('.$this->_types[$output_type]['ext'].') not supported for creating/writing.', E_USER_ERROR);
    681. 

  681. 					return null;
    682. 

  682. 				}
    683. 

  683. 				header ('Content-type: ' . $this->_types[$output_type]['mime']);
    684. 

  684. 				imagepng($this->_img['main']['resource'], $filename);
    685. 

  685. 				break;
    686. 

  686. 				
    687. 

  687. 			case 4:
    688. 

  688. 			case '4':
    689. 

  689. 			case 'png8':
    690. 

  690. 			case 'PNG8':
    691. 

  691. 				if ($this->_types[3]['supported'] < 2) {
    692. 

  692. 					trigger_error($this->_error_prefix . 'Imagetype ('.$this->_types[$output_type]['ext'].') not supported for creating/writing.', E_USER_ERROR);
    693. 

  693. 					return null;
    694. 

  694. 				}
    695. 

  695. 				if ($this->_gd_version >= 2) {
    696. 

  696. 					if ($this->_img['main']['indexedcolors'] == 0) {
    697. 

  697. 						$dummy = imagecreatetruecolor($this->_img['main']['width'], $this->_img['main']['height']);
    698. 

  698. 						imagecopy($dummy, $this->_img['main']['resource'], 0, 0, 0, 0, $this->_img['main']['width'], $this->_img['main']['height']);
    699. 

  699. 						if ($output_quality === false) {
    700. 

  700. 							$output_quality = IMAGE_TOOLBOX_DEFAULT_8BIT_COLORS;
    701. 

  701. 						}
    702. 

  702. 						imagetruecolortopalette($dummy, $dither, $output_quality);
    703. 

  703. 					}
    704. 

  704. 					imagepng($dummy, $filename);
    705. 

  705. 					imagedestroy($dummy);
    706. 

  706. 				}
    707. 

  707. 				else {
    708. 

  708. 					imagepng($this->_img['main']['resource'], $filename);
    709. 

  709. 				}
    710. 

  710. 				break;
    711. 

  711. 				
    712. 

  712. 			default:
    713. 

  713. 				trigger_error($this->_error_prefix . 'Output-Imagetype not supported.', E_USER_ERROR);
    714. 

  714. 				return null;
    715. 

  715. 		}
    716. 

  716. 		return true;
    717. 

  717. 	}
    718. 

  718. 	
    719. 

  719. 	/**
    720. 

  720.      * Sets the resize method of choice
    721. 

  721.      * 
    722. 

  722.      * $method can be one of the following:<br>
    723. 

  723.      * <ul>
    724. 

  724.      * <li>'resize' -> supported by every version of GD (fast but ugly resize of image)</li>
    725. 

  725.      * <li>'resample' -> only supported by GD version >= 2.0 (slower but antialiased resize of image)</li>
    726. 

  726.      * <li>'workaround' -> supported by every version of GD (workaround function for bicubic resizing, downsizing, VERY slow!, taken from php.net comments)</li>
    727. 

  727.      * <li>'workaround2' -> supported by every version of GD (alternative workaround function for bicubic resizing, down- and upsizing, VERY VERY slow!, taken from php.net comments)</li>
    728. 

  728.      * </ul>
    729. 

  729.      *
    730. 

  730.      * @param string|integer $method resize method
    731. 

  731.      * @return bool true on success, otherwise false
    732. 

  732.      */
    733. 

  733. 	function setResizeMethod($method) {
    734. 

  734. 		switch ($method) {
    735. 

  735. 			case 1:
    736. 

  736. 			case '1':
    737. 

  737. 			case 'resize':
    738. 

  738. 				$this->_resize_function = 'imagecopyresized';
    739. 

  739. 				break;
    740. 

  740. 				
    741. 

  741. 			case 2:
    742. 

  742. 			case '2':
    743. 

  743. 			case 'resample':
    744. 

  744. 				if (!function_exists('imagecopyresampled')) {
    745. 

  745. 					// no error message. just return false.
    746. 

  746. 					return null;
    747. 

  747. 				}
    748. 

  748. 				$this->_resize_function = 'imagecopyresampled';
    749. 

  749. 				break;
    750. 

  750. 				
    751. 

  751. 			case 3:
    752. 

  752. 			case '3':
    753. 

  753. 			case 'resample_workaround':
    754. 

  754. 			case 'workaround':
    755. 

  755. 			case 'bicubic':
    756. 

  756. 				$this->_resize_function = '$this->_imageCopyResampledWorkaround';
    757. 

  757. 				break;
    758. 

  758. 				
    759. 

  759. 			case 4:
    760. 

  760. 			case '4':
    761. 

  761. 			case 'resample_workaround2':
    762. 

  762. 			case 'workaround2':
    763. 

  763. 			case 'bicubic2':
    764. 

  764. 				$this->_resize_function = '$this->_imageCopyResampledWorkaround2';
    765. 

  765. 				break;
    766. 

  766. 				
    767. 

  767. 			default:
    768. 

  768. 				trigger_error($this->_error_prefix . 'Resizemethod not supported.', E_USER_ERROR);
    769. 

  769. 				return null;
    770. 

  770. 		}
    771. 

  771. 		return true;
    772. 

  772. 	}
    773. 

  773. 	
    774. 

  774. 	/**
    775. 

  775.      * Resize the current image
    776. 

  776.      * 
    777. 

  777.      * if $width = 0 the new width will be calculated from the $height value preserving the correct aspectratio.<br>
    778. 

  778.      *
    779. 

  779.      * if $height = 0 the new height will be calculated from the $width value preserving the correct aspectratio.<br>
    780. 

  780.      *
    781. 

  781.      * $mode can be one of the following:<br>
    782. 

  782.      * <ul>
    783. 

  783.      * <li>0 -> image will be resized to the new output size, regardless of the original aspectratio. (default)</li>
    784. 

  784.      * <li>1 -> image will be cropped if necessary to preserve the aspectratio and avoid image distortions.</li>
    785. 

  785.      * <li>2 -> image will be resized preserving its original aspectratio. differences to the new outputsize will be filled with $bgcolor</li>
    786. 

  786.      * </ul>
    787. 

  787.      *
    788. 

  788.      * if $autorotate is set to true the given $width and $height values may "change place" if the given image bias is different from the original one.<br>
    789. 

  789.      * if either $width or $height is 0, the new size will be applied to either the new width or the new height based on the bias value of the original image.<br>
    790. 

  790.      * (default = false)
    791. 

  791.      *
    792. 

  792.      * @param integer $width new width of image
    793. 

  793.      * @param integer $height new height of image
    794. 

  794.      * @param integer $mode resize mode
    795. 

  795.      * @param bool $autorotate use autorotating
    796. 

  796.      * @param string $bgcolor background fillcolor (hexformat, e.g. '#FF0000')
    797. 

  797.      * @return bool true on success, otherwise false
    798. 

  798.      */
    799. 

  799. 	function newOutputSize($width, $height, $mode = 0, $autorotate = false, $bgcolor = '#000000') {
    800. 

  800. 		if ($width > 0 && $height > 0 && is_int($width) && is_int($height)) {
    801. 

  801. 			//ignore aspectratio
    802. 

  802. 			if (!$mode) {
    803. 

  803. 				//do not crop to get correct aspectratio
    804. 

  804. 				($width >= $height) ? ($this->_img['target']['bias'] = IMAGE_TOOLBOX_BIAS_HORIZONTAL) : ($this->_img['target']['bias'] = IMAGE_TOOLBOX_BIAS_VERTICAL);
    805. 

  805. 				if ($this->_img['main']['bias'] == $this->_img['target']['bias'] || !$autorotate) {
    806. 

  806. 					$this->_img['target']['width'] = $width;
    807. 

  807. 					$this->_img['target']['height'] = $height;
    808. 

  808. 				} else {
    809. 

  809. 					$this->_img['target']['width'] = $height;
    810. 

  810. 					$this->_img['target']['height'] = $width;
    811. 

  811. 				}
    812. 

  812. 				$this->_img['target']['aspectratio'] = $this->_img['target']['width'] / $this->_img['target']['height'];
    813. 

  813. 				
    814. 

  814. 				$cpy_w = $this->_img['main']['width'];
    815. 

  815. 				$cpy_h = $this->_img['main']['height'];
    816. 

  816. 				$cpy_w_offset = 0;
    817. 

  817. 				$cpy_h_offset = 0;
    818. 

  818. 			} elseif ($mode == 1) {
    819. 

  819. 				//crop to get correct aspectratio
    820. 

  820. 				($width >= $height) ? ($this->_img['target']['bias'] = IMAGE_TOOLBOX_BIAS_HORIZONTAL) : ($this->_img['target']['bias'] = IMAGE_TOOLBOX_BIAS_VERTICAL);
    821. 

  821. 				if ($this->_img['main']['bias'] == $this->_img['target']['bias'] || !$autorotate) {
    822. 

  822. 					$this->_img['target']['width'] = $width;
    823. 

  823. 					$this->_img['target']['height'] = $height;
    824. 

  824. 				} else {
    825. 

  825. 					$this->_img['target']['width'] = $height;
    826. 

  826. 					$this->_img['target']['height'] = $width;
    827. 

  827. 				}
    828. 

  828. 				$this->_img['target']['aspectratio'] = $this->_img['target']['width'] / $this->_img['target']['height'];
    829. 

  829. 				
    830. 

  830. 				if ($this->_img['main']['width'] / $this->_img['target']['width'] >= $this->_img['main']['height'] / $this->_img['target']['height']) {
    831. 

  831. 					$cpy_h = $this->_img['main']['height'];
    832. 

  832. 					$cpy_w = (integer) $this->_img['main']['height'] * $this->_img['target']['aspectratio'];
    833. 

  833. 					$cpy_w_offset = (integer) ($this->_img['main']['width'] - $cpy_w) / 2;
    834. 

  834. 					$cpy_h_offset = 0;
    835. 

  835. 				} else {
    836. 

  836. 					$cpy_w = $this->_img['main']['width'];
    837. 

  837. 					$cpy_h = (integer) $this->_img['main']['width'] / $this->_img['target']['aspectratio'];
    838. 

  838. 					$cpy_h_offset = (integer) ($this->_img['main']['height'] - $cpy_h) / 2;
    839. 

  839. 					$cpy_w_offset = 0;
    840. 

  840. 				}
    841. 

  841. 			}
    842. 

  842. 			elseif ($mode == 2) {
    843. 

  843. 				//fill remaining background with a color to keep aspectratio
    844. 

  844. 				$final_aspectratio = $width / $height;
    845. 

  845. 				if ($final_aspectratio < $this->_img['main']['aspectratio']) {
    846. 

  846. 					$this->_img['target']['width'] = $width;
    847. 

  847. 					$this->_img['target']['height'] = (integer) $width / $this->_img['main']['aspectratio'];
    848. 

  848. 					$cpy_w_offset2 = 0;
    849. 

  849. 					$cpy_h_offset2 = (integer) (($height - $this->_img['target']['height']) / 2);
    850. 

  850. 				}
    851. 

  851. 				else {
    852. 

  852. 					$this->_img['target']['height'] = $height;
    853. 

  853. 					$this->_img['target']['width'] = (integer) $height * $this->_img['main']['aspectratio'];
    854. 

  854. 					$cpy_h_offset2 = 0;
    855. 

  855. 					$cpy_w_offset2 = (integer) (($width - $this->_img['target']['width']) / 2);
    856. 

  856. 				}
    857. 

  857. 				$this->_img['target']['aspectratio'] = $this->_img['main']['aspectratio'];
    858. 

  858. 				$cpy_w = $this->_img['main']['width'];
    859. 

  859. 				$cpy_h = $this->_img['main']['height'];
    860. 

  860. 				$cpy_w_offset = 0;
    861. 

  861. 				$cpy_h_offset = 0;
    862. 

  862. 			}
    863. 

  863. 		} elseif (($width == 0 && $height > 0) || ($width > 0 && $height == 0) && is_int($width) && is_int($height)) {
    864. 

  864. 			//keep aspectratio
    865. 

  865. 			if ($autorotate == true) {
    866. 

  866. 				if ($this->_img['main']['bias'] == IMAGE_TOOLBOX_BIAS_HORIZONTAL && $width > 0) {
    867. 

  867. 					$height = $width;
    868. 

  868. 					$width = 0;
    869. 

  869. 				} elseif ($this->_img['main']['bias'] == IMAGE_TOOLBOX_BIAS_VERTICAL && $height > 0) {
    870. 

  870. 					$width = $height;
    871. 

  871. 					$height = 0;
    872. 

  872. 				}
    873. 

  873. 			}
    874. 

  874. 			($width >= $height) ? ($this->_img['target']['bias'] = IMAGE_TOOLBOX_BIAS_HORIZONTAL) : ($this->_img['target']['bias'] = IMAGE_TOOLBOX_BIAS_VERTICAL);
    875. 

  875. 			if ($width != 0) {
    876. 

  876. 				$this->_img['target']['width'] = $width;
    877. 

  877. 				$this->_img['target']['height'] = (integer) $width / $this->_img['main']['aspectratio'];
    878. 

  878. 			} else {
    879. 

  879. 				$this->_img['target']['height'] = $height;
    880. 

  880. 				$this->_img['target']['width'] = (integer) $height * $this->_img['main']['aspectratio'];
    881. 

  881. 			}
    882. 

  882. 			$this->_img['target']['aspectratio'] = $this->_img['main']['aspectratio'];
    883. 

  883. 			
    884. 

  884. 			$cpy_w = $this->_img['main']['width'];
    885. 

  885. 			$cpy_h = $this->_img['main']['height'];
    886. 

  886. 			$cpy_w_offset = 0;
    887. 

  887. 			$cpy_h_offset = 0;
    888. 

  888. 		} else {
    889. 

  889. 			trigger_error($this->_error_prefix . 'Outputwidth and -height must be integers greater zero.', E_USER_ERROR);
    890. 

  890. 			return null;
    891. 

  891. 		}
    892. 

  892. 		
    893. 

  893. 		//create resized picture
    894. 

  894. 		$functionname = $this->_imagecreatefunction;
    895. 

  895. 		$dummy = $functionname($this->_img['target']['width'] + 1, $this->_img['target']['height'] + 1);
    896. 

  896. 		eval($this->_resize_function . '($dummy, $this->_img["main"]["resource"], 0, 0, $cpy_w_offset, $cpy_h_offset, $this->_img["target"]["width"], $this->_img["target"]["height"], $cpy_w, $cpy_h);');
    897. 

  897. 		if ($mode == 2) {
    898. 

  898. 			$this->_img['target']['resource'] = $functionname($width, $height);
    899. 

  899. 			$fillcolor = $this->_hexToPHPColor($bgcolor);
    900. 

  900.             imagefill($this->_img['target']['resource'], 0, 0, $fillcolor);
    901. 

  901. 		} else {
    902. 

  902. 			$this->_img['target']['resource'] = $functionname($this->_img['target']['width'], $this->_img['target']['height']);
    903. 

  903. 			$cpy_w_offset2 = 0;
    904. 

  904. 			$cpy_h_offset2 = 0;
    905. 

  905. 		}
    906. 

  906. 		imagecopy($this->_img['target']['resource'], $dummy, $cpy_w_offset2, $cpy_h_offset2, 0, 0, $this->_img['target']['width'], $this->_img['target']['height']);
    907. 

  907. 		imagedestroy($dummy);
    908. 

  908. 		
    909. 

  909. 		if ($mode == 2) {
    910. 

  910. 			$this->_img['target']['width'] = $width;
    911. 

  911.             $this->_img['target']['height'] = $height;
    912. 

  912.         }
    913. 

  913. 		//update _img['main'] with new data
    914. 

  914. 		foreach ($this->_img['target'] as $key => $value) {
    915. 

  915. 			$this->_img['main'][$key] = $value;
    916. 

  916. 		}
    917. 

  917. 		unset ($this->_img['target']);
    918. 

  918. 		
    919. 

  919. 		return true;
    920. 

  920. 	}
    921. 

  921. 

  922. 	/**
    923. 

  923.      * Adds a new image resource based on the given parameters.
    924. 

  924.      *
    925. 

  925.      * It does not overwrite the existing image resource.<br>
    926. 

  926.      * Instead it is used to load a second image to merge with the existing image.
    927. 

  927.      *
    928. 

  928.      * Parameter:<br>
    929. 

  929.      * <i>string</i> <b>$file</b> imagefile to load<br>
    930. 

  930.      * Or:<br>
    931. 

  931.      * <i>integer</i> <b>$width</b> imagewidth of new image to be created<br>
    932. 

  932.      * <i>integer</i> <b>$height</b> imageheight of new image to be created<br>
    933. 

  933.      * <i>string</i> <b>$fillcolor</b> optional fill the new image with this color (hexformat, e.g. '#FF0000')<br>
    934. 

  934.      */	
    935. 

  935. 	function addImage() {
    936. 

  936. 		$args = func_get_args(); 
    937. 

  937. 		$argc = func_num_args();
    938. 

  938. 		
    939. 

  939. 		if ($this->_addImage($argc, $args)) {
    940. 

  940. 			return true;
    941. 

  941. 		} else {
    942. 

  942. 			trigger_error($this->_error_prefix . 'failed to add image.', E_USER_ERROR);
    943. 

  943. 			return false;
    944. 

  944. 		}
    945. 

  945. 	}
    946. 

  946. 	
    947. 

  947. 	/**
    948. 

  948.      * Blend two images.
    949. 

  949.      *
    950. 

  950.      * Original image and the image loaded with {@link addImage() addImage}<br>
    951. 

  951.      * NOTE: This operation can take very long and is not intended for realtime use.
    952. 

  952.      * (but of course depends on the power of your server :) )
    953. 

  953.      *
    954. 

  954.      * IMPORTANT: {@link imagecopymerge() imagecopymerged} doesn't work with PHP 4.3.2. Bug ID: {@link http://bugs.php.net/bug.php?id=24816 24816}<br>
    955. 

  955.      *
    956. 

  956.      * $x:<br>
    957. 

  957.      * negative values are possible.<br>
    958. 

  958.      * You can also use the following keywords ('left', 'center' or 'middle', 'right').<br>
    959. 

  959.      * Additionally you can specify an offset in pixel with the keywords like this 'left +10'.<br>
    960. 

  960.      * (default = 0)
    961. 

  961.      *
    962. 

  962.      * $y:<br>
    963. 

  963.      * negative values are possible.<br>
    964. 

  964.      * You can also use the following keywords ('top', 'center' or 'middle', 'bottom').<br>
    965. 

  965.      * Additionally you can specify an offset in pixel with the keywords like this 'bottom -10'.<br>
    966. 

  966.      * (default = 0)
    967. 

  967.      *
    968. 

  968.      * Possible values for $mode:
    969. 

  969.      * <ul>
    970. 

  970.      *  <li>IMAGE_TOOLBOX_BLEND_COPY</li>
    971. 

  971.      *  <li>IMAGE_TOOLBOX_BLEND_MULTIPLY</li>
    972. 

  972.      *  <li>IMAGE_TOOLBOX_BLEND_SCREEN</li>
    973. 

  973.      *  <li>IMAGE_TOOLBOX_BLEND_DIFFERENCE</li>
    974. 

  974.      *  <li>IMAGE_TOOLBOX_BLEND_EXCLUSION</li>
    975. 

  975.      *  <li>IMAGE_TOOLBOX_BLEND_OVERLAY</li>
    976. 

  976.      * </ul>
    977. 

  977.      *
    978. 

  978.      * $percent:<br>
    979. 

  979.      * alpha value in percent of blend effect (0 - 100)<br>
    980. 

  980.      * (default = 100)
    981. 

  981.      *
    982. 

  982.      * @param string|integer $x Horizontal position of second image. 
    983. 

  983.      * @param integer $y Vertical position of second image. negative values are possible.
    984. 

  984.      * @param integer $mode blend mode.
    985. 

  985.      * @param integer $percent alpha value
    986. 

  986.      */	
    987. 

  987. 	function blend($x = 0, $y = 0, $mode = IMAGE_TOOLBOX_BLEND_COPY, $percent = 100) {
    988. 

  988. 		if (is_string($x) || is_string($y)) {
    989. 

  989. 			list($xalign, $xalign_offset) = explode(" ", $x);
    990. 

  990. 			list($yalign, $yalign_offset) = explode(" ", $y);
    991. 

  991. 		}
    992. 

  992. 		if (is_string($x)) {
    993. 

  993. 			switch ($xalign) {
    994. 

  994. 				case 'left':
    995. 

  995. 					$dst_x = 0 + $xalign_offset;
    996. 

  996. 					$src_x = 0;
    997. 

  997. 					$src_w = $this->_img['operator']['width'];
    998. 

  998. 					break;
    999. 

  999. 					
    1000. 

  1000. 				case 'right':
    1001. 

  1001. 					$dst_x = ($this->_img['main']['width'] - $this->_img['operator']['width']) + $xalign_offset;
    1002. 

  1002. 					$src_x = 0;
    1003. 

  1003. 					$src_w = $this->_img['operator']['width'];
    1004. 

  1004. 					break;
    1005. 

  1005. 					
    1006. 

  1006. 				case 'middle':
    1007. 

  1007. 				case 'center':
    1008. 

  1008. 					$dst_x = (($this->_img['main']['width'] / 2) - ($this->_img['operator']['width'] / 2)) + $yalign_offset;
    1009. 

  1009. 					$src_x = 0;
    1010. 

  1010. 					$src_w = $this->_img['operator']['width'];
    1011. 

  1011. 					break;
    1012. 

  1012. 			}
    1013. 

  1013. 		} else {
    1014. 

  1014. 			if ($x >= 0) {
    1015. 

  1015. 				$dst_x = $x;
    1016. 

  1016. 				$src_x = 0;
    1017. 

  1017. 				$src_w = $this->_img['operator']['width'];
    1018. 

  1018. 			} else {
    1019. 

  1019. 				$dst_x = 0;
    1020. 

  1020. 				$src_x = abs($x);
    1021. 

  1021. 				$src_w = $this->_img['operator']['width'] - $src_x;
    1022. 

  1022. 			}
    1023. 

  1023. 		}
    1024. 

  1024. 		if (is_string($y)) {
    1025. 

  1025. 			switch ($yalign) {
    1026. 

  1026. 				case 'top':
    1027. 

  1027. 					$dst_y = 0 + $yalign_offset;
    1028. 

  1028. 					$src_y = 0;
    1029. 

  1029. 					$src_h = $this->_img['operator']['height'];
    1030. 

  1030. 					break;
    1031. 

  1031. 					
    1032. 

  1032. 				case 'bottom':
    1033. 

  1033. 					$dst_y = ($this->_img['main']['height'] - $this->_img['operator']['height']) + $yalign_offset;
    1034. 

  1034. 					$src_y = 0;
    1035. 

  1035. 					$src_h = $this->_img['operator']['height'];
    1036. 

  1036. 					break;
    1037. 

  1037. 					
    1038. 

  1038. 				case 'middle':
    1039. 

  1039. 				case 'center':
    1040. 

  1040. 					$dst_y = (($this->_img['main']['height'] / 2) - ($this->_img['operator']['height'] / 2)) + $yalign_offset;
    1041. 

  1041. 					$src_y = 0;
    1042. 

  1042. 					$src_h = $this->_img['operator']['height'];
    1043. 

  1043. 					break;
    1044. 

  1044. 			}
    1045. 

  1045. 		} else {
    1046. 

  1046. 			if ($y >= 0) {
    1047. 

  1047. 				$dst_y = $y;
    1048. 

  1048. 				$src_y = 0;
    1049. 

  1049. 				$src_h = $this->_img['operator']['height'];
    1050. 

  1050. 			} else {
    1051. 

  1051. 				$dst_y = 0;
    1052. 

  1052. 				$src_y = abs($y);
    1053. 

  1053. 				$src_h = $this->_img['operator']['height'] - $src_y;
    1054. 

  1054. 			}
    1055. 

  1055. 		}
    1056. 

  1056. 		$this->_imageBlend($mode, $dst_x, $dst_y, $src_x, $src_y, $src_w, $src_h, $percent);
    1057. 

  1057. 		return true;
    1058. 

  1058. 	}
    1059. 

  1059. 	
    1060. 

  1060. 	/**
    1061. 

  1061.      * Blend two images.
    1062. 

  1062.      *
    1063. 

  1063.      * @access private
    1064. 

  1064.      */	
    1065. 

  1065. 	function _imageBlend($mode, $dst_x, $dst_y, $src_x, $src_y, $src_w, $src_h, $percent) {
    1066. 

  1066. 		if ($mode == IMAGE_TOOLBOX_BLEND_COPY) {
    1067. 

  1067. 			if ($percent == 100) {
    1068. 

  1068. 				imagecopy($this->_img['main']['resource'], $this->_img['operator']['resource'], $dst_x, $dst_y, $src_x, $src_y, $src_w, $src_h);
    1069. 

  1069. 			} else {
    1070. 

  1070. 				imagecopymerge($this->_img['main']['resource'], $this->_img['operator']['resource'], $dst_x, $dst_y, $src_x, $src_y, $src_w, $src_h, $percent);
    1071. 

  1071. 			}
    1072. 

  1072. 		} else {
    1073. 

  1073. 			$functionname = $this->_imagecreatefunction;
    1074. 

  1074. 			$dummy = $functionname($src_w, $src_h);
    1075. 

  1075. 			for ($y=0; $y < $src_h; $y++) {
    1076. 

  1076. 				for ($x=0; $x < $src_w; $x++) {
    1077. 

  1077. 					$colorindex = imagecolorat($this->_img['main']['resource'], $dst_x + $x, $dst_y + $y);
    1078. 

  1078. 					$colorrgb1 = imagecolorsforindex($this->_img['main']['resource'], $colorindex);
    1079. 

  1079. 					$colorindex = imagecolorat($this->_img['operator']['resource'], $src_x + $x, $src_y + $y);
    1080. 

  1080. 					$colorrgb2 = imagecolorsforindex($this->_img['operator']['resource'], $colorindex);
    1081. 

  1081. 					$colorblend = $this->_calculateBlendvalue($mode, $colorrgb1, $colorrgb2);
    1082. 

  1082. 					$newcolor = imagecolorallocate($dummy, $colorblend['red'], $colorblend['green'], $colorblend['blue']);
    1083. 

  1083. 					imagesetpixel($dummy, $x, $y, $newcolor);
    1084. 

  1084. 				}
    1085. 

  1085. 			}
    1086. 

  1086. 		
    1087. 

  1087. 			$this->_img['target']['resource'] = $functionname($this->_img['main']['width'], $this->_img['main']['height']);
    1088. 

  1088. 			imagecopy($this->_img['target']['resource'], $this->_img['main']['resource'], 0, 0, 0, 0, $this->_img['main']['width'], $this->_img['main']['height']);
    1089. 

  1089. 			imagecopymerge($this->_img['target']['resource'], $dummy, $dst_x, $dst_y, $src_x, $src_y, $src_w, $src_h, $percent);
    1090. 

  1090. 									
    1091. 

  1091. 			$this->_img['main']['resource'] = $this->_img['target']['resource'];
    1092. 

  1092. 			unset($this->_img['target']);
    1093. 

  1093. 		}
    1094. 

  1094. 	}
    1095. 

  1095. 	
    1096. 

  1096. 	/**
    1097. 

  1097.      * Calculate blend values for given blend mode
    1098. 

  1098.      *
    1099. 

  1099.      * @access private
    1100. 

  1100.      */	
    1101. 

  1101. 	function _calculateBlendvalue($mode, $colorrgb1, $colorrgb2) {
    1102. 

  1102. 		switch ($mode) {
    1103. 

  1103. 			case IMAGE_TOOLBOX_BLEND_MULTIPLY:
    1104. 

  1104. 				$c['red'] = ($colorrgb1['red'] * $colorrgb2['red']) >> 8;
    1105. 

  1105. 				$c['green'] = ($colorrgb1['green'] * $colorrgb2['green']) >> 8;
    1106. 

  1106. 				$c['blue'] = ($colorrgb1['blue'] * $colorrgb2['blue']) >> 8;
    1107. 

  1107. 				break;
    1108. 

  1108. 			
    1109. 

  1109. 			case IMAGE_TOOLBOX_BLEND_SCREEN:
    1110. 

  1110. 				$c['red'] = 255 - ((255 - $colorrgb1['red']) * (255 - $colorrgb2['red']) >> 8);
    1111. 

  1111. 				$c['green'] = 255 - ((255 - $colorrgb1['green']) * (255 - $colorrgb2['green']) >> 8);
    1112. 

  1112. 				$c['blue'] = 255 - ((255 - $colorrgb1['blue']) * (255 - $colorrgb2['blue']) >> 8);
    1113. 

  1113. 				break;
    1114. 

  1114. 			
    1115. 

  1115. 			case IMAGE_TOOLBOX_BLEND_DIFFERENCE:
    1116. 

  1116. 				$c['red'] = abs($colorrgb1['red'] - $colorrgb2['red']);
    1117. 

  1117. 				$c['green'] = abs($colorrgb1['green'] - $colorrgb2['green']);
    1118. 

  1118. 				$c['blue'] = abs($colorrgb1['blue'] - $colorrgb2['blue']);
    1119. 

  1119. 				break;
    1120. 

  1120. 			
    1121. 

  1121. 			case IMAGE_TOOLBOX_BLEND_NEGATION:	
    1122. 

  1122. 				$c['red'] = 255 - abs(255 - $colorrgb1['red'] - $colorrgb2['red']);
    1123. 

  1123. 				$c['green'] = 255 - abs(255 - $colorrgb1['green'] - $colorrgb2['green']);
    1124. 

  1124. 				$c['blue'] = 255 - abs(255 - $colorrgb1['blue'] - $colorrgb2['blue']);
    1125. 

  1125. 				break;
    1126. 

  1126. 				
    1127. 

  1127. 			case IMAGE_TOOLBOX_BLEND_EXCLUTION:	
    1128. 

  1128. 				$c['red'] = $colorrgb1['red'] + $colorrgb2['red'] - (($colorrgb1['red'] * $colorrgb2['red']) >> 7);
    1129. 

  1129. 				$c['green'] = $colorrgb1['green'] + $colorrgb2['green'] - (($colorrgb1['green'] * $colorrgb2['green']) >> 7);
    1130. 

  1130. 				$c['blue'] = $colorrgb1['blue'] + $colorrgb2['blue'] - (($colorrgb1['blue'] * $colorrgb2['blue']) >> 7);
    1131. 

  1131. 				break;
    1132. 

  1132. 				
    1133. 

  1133. 			case IMAGE_TOOLBOX_BLEND_OVERLAY:			
    1134. 

  1134. 				if ($colorrgb1['red'] < 128) {
    1135. 

  1135. 					$c['red']= ($colorrgb1['red'] * $colorrgb2['red']) >> 7;
    1136. 

  1136. 				} else {
    1137. 

  1137. 					$c['red'] = 255 - ((255 - $colorrgb1['red']) * (255 - $colorrgb2['red']) >> 7);
    1138. 

  1138. 				}
    1139. 

  1139. 				if ($colorrgb1['green'] < 128) {
    1140. 

  1140. 					$c['green'] = ($colorrgb1['green'] * $colorrgb2['green']) >> 7;
    1141. 

  1141. 				} else {
    1142. 

  1142. 					$c['green'] = 255 - ((255 - $colorrgb1['green']) * (255 - $colorrgb2['green']) >> 7);
    1143. 

  1143. 				}
    1144. 

  1144. 				if ($colorrgb1['blue'] < 128) {
    1145. 

  1145. 					$c['blue'] = ($colorrgb1['blue'] * $colorrgb2['blue']) >> 7;
    1146. 

  1146. 				} else {
    1147. 

  1147. 					$c['blue'] = 255 - ((255 - $colorrgb1['blue']) * (255 - $colorrgb2['blue']) >> 7);
    1148. 

  1148. 				}
    1149. 

  1149. 				break;
    1150. 

  1150. 				
    1151. 

  1151. 			default:
    1152. 

  1152. 				break;
    1153. 

  1153. 		}
    1154. 

  1154. 		return $c;
    1155. 

  1155. 	}
    1156. 

  1156. 	
    1157. 

  1157. 	/**
    1158. 

  1158.      * convert iso character coding to unicode (PHP conform)
    1159. 

  1159.      * needed for TTF text generation of special characters (Latin-2)
    1160. 

  1160.      *
    1161. 

  1161.      * @access private
    1162. 

  1162.      */	
    1163. 

  1163. 	function _iso2uni($isoline) {
    1164. 

  1164. 		$iso2uni = array(
    1165. 

  1165. 			173 => "&#161;",
    1166. 

  1166. 			155 => "&#162;",
    1167. 

  1167. 			156 => "&#163;",
    1168. 

  1168. 			15 => "&#164;",
    1169. 

  1169. 			157 => "&#165;",
    1170. 

  1170. 			124 => "&#166;",
    1171. 

  1171. 			21 => "&#167;",
    1172. 

  1172. 			249 => "&#168;",
    1173. 

  1173. 			184 => "&#169;",
    1174. 

  1174. 			166 => "&#170;",
    1175. 

  1175. 			174 => "&#171;",
    1176. 

  1176. 			170 => "&#172;",
    1177. 

  1177. 			169 => "&#174;",
    1178. 

  1178. 			238 => "&#175;",
    1179. 

  1179. 			248 => "&#176;",
    1180. 

  1180. 			241 => "&#177;",
    1181. 

  1181. 			253 => "&#178;",
    1182. 

  1182. 			252 => "&#179;",
    1183. 

  1183. 			239 => "&#180;",
    1184. 

  1184. 			230 => "&#181;",
    1185. 

  1185. 			20 => "&#182;",
    1186. 

  1186. 			250 => "&#183;",
    1187. 

  1187. 			247 => "&#184;",
    1188. 

  1188. 			251 => "&#185;",
    1189. 

  1189. 			167 => "&#186;",
    1190. 

  1190. 			175 => "&#187;",
    1191. 

  1191. 			172 => "&#188;",
    1192. 

  1192. 			171 => "&#189;",
    1193. 

  1193. 			243 => "&#190;",
    1194. 

  1194. 			168 => "&#191;",
    1195. 

  1195. 			183 => "&#192;",
    1196. 

  1196. 			181 => "&#193;",
    1197. 

  1197. 			182 => "&#194;",
    1198. 

  1198. 			199 => "&#195;",
    1199. 

  1199. 			142 => "&#196;",
    1200. 

  1200. 			143 => "&#197;",
    1201. 

  1201. 			146 => "&#198;",
    1202. 

  1202. 			128 => "&#199;",
    1203. 

  1203. 			212 => "&#200;",
    1204. 

  1204. 			144 => "&#201;",
    1205. 

  1205. 			210 => "&#202;",
    1206. 

  1206. 			211 => "&#203;",
    1207. 

  1207. 			141 => "&#204;",
    1208. 

  1208. 			161 => "&#205;",
    1209. 

  1209. 			140 => "&#206;",
    1210. 

  1210. 			139 => "&#207;",
    1211. 

  1211. 			209 => "&#208;",
    1212. 

  1212. 			165 => "&#209;",
    1213. 

  1213. 			227 => "&#210;",
    1214. 

  1214. 			224 => "&#211;",
    1215. 

  1215. 			226 => "&#212;",
    1216. 

  1216. 			229 => "&#213;",
    1217. 

  1217. 			153 => "&#214;",
    1218. 

  1218. 			158 => "&#215;",
    1219. 

  1219. 			157 => "&#216;",
    1220. 

  1220. 			235 => "&#217;",
    1221. 

  1221. 			233 => "&#218;",
    1222. 

  1222. 			234 => "&#219;",
    1223. 

  1223. 			154 => "&#220;",
    1224. 

  1224. 			237 => "&#221;",
    1225. 

  1225. 			232 => "&#222;",
    1226. 

  1226. 			225 => "&#223;",
    1227. 

  1227. 			133 => "&#224;",
    1228. 

  1228. 			160 => "&#225;",
    1229. 

  1229. 			131 => "&#226;",
    1230. 

  1230. 			198 => "&#227;",
    1231. 

  1231. 			132 => "&#228;",
    1232. 

  1232. 			134 => "&#229;",
    1233. 

  1233. 			145 => "&#230;",
    1234. 

  1234. 			135 => "&#231;",
    1235. 

  1235. 			138 => "&#232;",
    1236. 

  1236. 			130 => "&#233;",
    1237. 

  1237. 			136 => "&#234;",
    1238. 

  1238. 			137 => "&#235;",
    1239. 

  1239. 			141 => "&#236;",
    1240. 

  1240. 			161 => "&#237;",
    1241. 

  1241. 			140 => "&#238;",
    1242. 

  1242. 			139 => "&#239;",
    1243. 

  1243. 			208 => "&#240;",
    1244. 

  1244. 			164 => "&#241;",
    1245. 

  1245. 			149 => "&#242;",
    1246. 

  1246. 			162 => "&#243;",
    1247. 

  1247. 			147 => "&#244;",
    1248. 

  1248. 			228 => "&#245;",
    1249. 

  1249. 			148 => "&#246;",
    1250. 

  1250. 			246 => "&#247;",
    1251. 

  1251. 			155 => "&#248;",
    1252. 

  1252. 			151 => "&#249;",
    1253. 

  1253. 			163 => "&#250;",
    1254. 

  1254. 			150 => "&#251;",
    1255. 

  1255. 			129 => "&#252;",
    1256. 

  1256. 			236 => "&#253;",
    1257. 

  1257. 			231 => "&#254;",
    1258. 

  1258. 			152 => "&#255;"
    1259. 

  1259. 		);
    1260. 

  1260. 		for ($i=0; $i < strlen($isoline); $i++){
    1261. 

  1261. 			$thischar = substr($isoline, $i, 1);
    1262. 

  1262. 			$new = $iso2uni[ord($thischar)];
    1263. 

  1263. 			$uniline .= ($new != "") ? $new : $thischar;
    1264. 

  1264. 		}
    1265. 

  1265. 		return $uniline;
    1266. 

  1266. 	}
    1267. 

  1267. 

  1268. 	/**
    1269. 

  1269.      * Writes text over the image
    1270. 

  1270.      *
    1271. 

  1271.      * only TTF fonts are supported at the moment
    1272. 

  1272.      *
    1273. 

  1273.      * $x:<br>
    1274. 

  1274.      * You can also use the following keywords ('left', 'center' or 'middle', 'right').<br>
    1275. 

  1275.      * Additionally you can specify an offset in pixel with the keywords like this 'left +10'.<br>
    1276. 

  1276.      * (default = 0)
    1277. 

  1277.      *
    1278. 

  1278.      * $y:<br>
    1279. 

  1279.      * You can also use the following keywords ('top', 'center' or 'middle', 'bottom').<br>
    1280. 

  1280.      * Additionally you can specify an offset in pixel with the keywords like this 'bottom -10'.<br>
    1281. 

  1281.      * (default = 0)
    1282. 

  1282.      *
    1283. 

  1283.      * @param string $text text to be generated.
    1284. 

  1284.      * @param string $font TTF fontfile to be used. (relative paths are ok).
    1285. 

  1285.      * @param integer $size textsize.
    1286. 

  1286.      * @param string $color textcolor in hexformat (e.g. '#FF0000').
    1287. 

  1287.      * @param string|integer $x horizontal postion in pixel.
    1288. 

  1288.      * @param string|integer $y vertical postion in pixel.
    1289. 

  1289.      * @param integer $angle rotation of the text.
    1290. 

  1290.      */	
    1291. 

  1291. 	function addText($text, $font, $size, $color, $x, $y, $angle = 0) {
    1292. 

  1292. 		global $HTTP_SERVER_VARS;
    1293. 

  1293. 		
    1294. 

  1294. 		if (substr($font, 0, 1) == DIRECTORY_SEPARATOR || (substr($font, 1, 1) == ":" && (substr($font, 2, 1) == "\\" || substr($font, 2, 1) == "/"))) {
    1295. 

  1295. 			$prepath = '';
    1296. 

  1296. 		} else {
    1297. 

  1297. 			$prepath = substr($HTTP_SERVER_VARS['SCRIPT_FILENAME'], 0, strrpos($HTTP_SERVER_VARS['SCRIPT_FILENAME'], DIRECTORY_SEPARATOR)) . DIRECTORY_SEPARATOR;
    1298. 

  1298. 		}
    1299. 

  1299. 		$text = $this->_iso2uni($text);
    1300. 

  1300. 		if (is_string($x) || is_string($y)) {
    1301. 

  1301. 			$textsize = imagettfbbox($size, $angle, $prepath.$font, $text);
    1302. 

  1302. 			$textwidth = abs($textsize[2]);
    1303. 

  1303. 			$textheight = abs($textsize[7]);
    1304. 

  1304. 			list($xalign, $xalign_offset) = explode(" ", $x);
    1305. 

  1305. 			list($yalign, $yalign_offset) = explode(" ", $y);
    1306. 

  1306. 		}
    1307. 

  1307. 		if (is_string($x)) {
    1308. 

  1308. 			switch ($xalign) {
    1309. 

  1309. 				case 'left':
    1310. 

  1310. 					$x = 0 + $xalign_offset;
    1311. 

  1311. 					break;
    1312. 

  1312. 					
    1313. 

  1313. 				case 'right':
    1314. 

  1314. 					$x = ($this->_img['main']['width'] - $textwidth) + $xalign_offset;
    1315. 

  1315. 					break;
    1316. 

  1316. 					
    1317. 

  1317. 				case 'middle':
    1318. 

  1318. 				case 'center':
    1319. 

  1319. 					$x = (($this->_img['main']['width'] - $textwidth) / 2) + $xalign_offset;
    1320. 

  1320. 					break;
    1321. 

  1321. 			}
    1322. 

  1322. 		}
    1323. 

  1323. 		if (is_string($y)) {
    1324. 

  1324. 			switch ($yalign) {
    1325. 

  1325. 				case 'top':
    1326. 

  1326. 					$y = (0 + $textheight) + $yalign_offset;
    1327. 

  1327. 					break;
    1328. 

  1328. 					
    1329. 

  1329. 				case 'bottom':
    1330. 

  1330. 					$y = ($this->_img['main']['height']) + $yalign_offset;
    1331. 

  1331. 					break;
    1332. 

  1332. 					
    1333. 

  1333. 				case 'middle':
    1334. 

  1334. 				case 'center':
    1335. 

  1335. 					$y = ((($this->_img['main']['height'] - $textheight) / 2) + $textheight) + $yalign_offset;
    1336. 

  1336. 					break;
    1337. 

  1337. 			}
    1338. 

  1338. 		}
    1339. 

  1339. 		imagettftext($this->_img['main']['resource'], $size, $angle, $x, $y, $this->_hexToPHPColor($color), $prepath . $font, $text);
    1340. 

  1340. 		return true;
    1341. 

  1341. 	}
    1342. 

  1342. 	
    1343. 

  1343. 	/**
    1344. 

  1344.      * workaround function for bicubic resizing. works well for downsizing only. VERY slow. taken from php.net comments
    1345. 

  1345.      *
    1346. 

  1346.      * @access private
    1347. 

  1347.      */	
    1348. 

  1348. 	function _imageCopyResampledWorkaround(&$dst_img, &$src_img, $dst_x, $dst_y, $src_x, $src_y, $dst_w, $dst_h, $src_w, $src_h) {
    1349. 

  1349. 		/*
    1350. 

  1350. 		for ($i = 0; $i < imagecolorstotal($src_img); $i++)
    1351. 

  1351. 		{
    1352. 

  1352. 			$colors = ImageColorsForIndex ($src_img, $i);
    1353. 

  1353. 			ImageColorAllocate ($dst_img, $colors['red'],$colors['green'], $colors['blue']);
    1354. 

  1354. 		}
    1355. 

  1355. 		*/
    1356. 

  1356. 		$scaleX = ($src_w - 1) / $dst_w;
    1357. 

  1357. 		$scaleY = ($src_h - 1) / $dst_h;
    1358. 

  1358. 

  1359. 		$scaleX2 = $scaleX / 2.0;
    1360. 

  1360. 		$scaleY2 = $scaleY / 2.0;
    1361. 

  1361. 

  1362. 		for ($j = $src_y; $j < $src_y + $dst_h; $j++) {
    1363. 

  1363. 			$sY = $j * $scaleY;
    1364. 

  1364. 			for ($i = $src_x; $i < $src_x + $dst_w; $i++) {
    1365. 

  1365. 				$sX = $i * $scaleX;
    1366. 

  1366. 

  1367. 				$c1 = ImageColorsForIndex($src_img, ImageColorAt($src_img, (int) $sX, (int) $sY + $scaleY2));
    1368. 

  1368. 				$c2 = ImageColorsForIndex($src_img, ImageColorAt($src_img, (int) $sX, (int) $sY));
    1369. 

  1369. 				$c3 = ImageColorsForIndex($src_img, ImageColorAt($src_img, (int) $sX + $scaleX2, (int) $sY + $scaleY2));
    1370. 

  1370. 				$c4 = ImageColorsForIndex($src_img, ImageColorAt($src_img, (int) $sX + $scaleX2, (int) $sY));
    1371. 

  1371. 

  1372. 				$red = (integer) (($c1['red'] + $c2['red'] + $c3['red'] + $c4['red']) / 4);
    1373. 

  1373. 				$green = (integer) (($c1['green'] + $c2['green'] + $c3['green'] + $c4['green']) / 4);
    1374. 

  1374. 				$blue = (integer) (($c1['blue'] + $c2['blue'] + $c3['blue'] + $c4['blue']) / 4);
    1375. 

  1375. 

  1376. 				$color = ImageColorClosest ($dst_img, $red, $green,$blue);
    1377. 

  1377. 				ImageSetPixel ($dst_img, $dst_x + $i - $src_x, $dst_y + $j - $src_y,$color);
    1378. 

  1378. 			}
    1379. 

  1379. 		}
    1380. 

  1380. 	}
    1381. 

  1381. 

  1382. 	/**
    1383. 

  1383.      * alternative workaround function for bicubic resizing. works well for downsizing and upsizing. VERY VERY slow. taken from php.net comments
    1384. 

  1384.      *
    1385. 

  1385.      * @access private
    1386. 

  1386.      */	
    1387. 

  1387. 	function _imageCopyResampledWorkaround2(&$dst_img, &$src_img, $dst_x, $dst_y, $src_x, $src_y, $dst_w, $dst_h, $src_w, $src_h) {
    1388. 

  1388. 		ImagePaletteCopy ($dst_img, $src_img);
    1389. 

  1389. 		$rX = $src_w / $dst_w;
    1390. 

  1390. 		$rY = $src_h / $dst_h;
    1391. 

  1391. 		$w = 0;
    1392. 

  1392. 		for ($y = $dst_y; $y < $dst_h; $y++) {
    1393. 

  1393. 			$ow = $w; $w = round(($y + 1) * $rY);
    1394. 

  1394. 			$t = 0;
    1395. 

  1395. 			for ($x = $dst_x; $x < $dst_w; $x++) {
    1396. 

  1396. 				$r = $g = $b = 0; $a = 0;
    1397. 

  1397. 				$ot = $t; $t = round(($x + 1) * $rX);
    1398. 

  1398. 				for ($u = 0; $u < ($w - $ow); $u++) {
    1399. 

  1399. 					for ($p = 0; $p < ($t - $ot); $p++) {
    1400. 

  1400. 						$c = ImageColorsForIndex ($src_img, ImageColorAt ($src_img, $ot + $p, $ow + $u));
    1401. 

  1401. 						$r += $c['red'];
    1402. 

  1402. 						$g += $c['green'];
    1403. 

  1403. 						$b += $c['blue'];
    1404. 

  1404. 						$a++;
    1405. 

  1405. 					}
    1406. 

  1406. 				}
    1407. 

  1407. 				ImageSetPixel ($dst_img, $x, $y, ImageColorClosest ($dst_img, $r / $a, $g / $a, $b / $a)); 
    1408. 

  1408. 			}
    1409. 

  1409. 		}
    1410. 

  1410. 	} 
    1411. 

  1411. }
    1412. 

  1412.